Hitachi YUTAKI Series - Page 65

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Accessories electrical installation
SMGB0066 rev.0 - 12/2009
Electrical wiring
Service Manual
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Theelectricalconnectionoftheloadmeasured(3)totheanode(1),ismadethroughthewiringofconnection(6):
- To the anode: U shaped terminal M10 (4)
- To the load measured: female Faston terminal 2.8 (10)
Theelectricalconnectionoftheloadmeasured(3)totheearth,ismadethroughthewiringofconnection(7):
-To earth: U shaped terminal M10 (5)
- To the load measured: female Faston terminal 6.3 (10)
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caution
Check the magnesium anode load periodically by pushing the button. If the gauge is in the red zone, the -
magnesium anode must be replaced.
Do not install the permanent cathode protection and the cathodic protection together. -
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All the Hitachi DHWT can be equipped with the permanent cathode protection system which is totally automatic and
maintenance free.
It basically comprises a titanium anode (1) mounted on the storage tank’s connection plate (2) and connected to a
potentiostat(3)whichautomaticallyregulatestheinputcurrenttotheanode,constantlymeasuringthepotentialofthe
storagetank),throughtheleads(4).Wiringtheanodetothepotentiostatbymeansofleads(4)iscarriedoutinthefollowing
way:
-Totheanode:connection(5),femaleFastonterminal.